CodeMirror.defineMode("clike", function (config, parserConfig) {
    var indentUnit = config.indentUnit,
        keywords = parserConfig.keywords || {},
        blockKeywords = parserConfig.blockKeywords || {},
        atoms = parserConfig.atoms || {},
        hooks = parserConfig.hooks || {},
        multiLineStrings = parserConfig.multiLineStrings;
    var isOperatorChar = /[+\-*&%=<>!?|\/]/;

    var curPunc;

    function tokenBase(stream, state) {
        var ch = stream.next();
        if (hooks[ch]) {
            var result = hooks[ch](stream, state);
            if (result !== false) return result;
        }
        if (ch == '"' || ch == "'") {
            state.tokenize = tokenString(ch);
            return state.tokenize(stream, state);
        }
        if (/[\[\]{}\(\),;\:\.]/.test(ch)) {
            curPunc = ch;
            return null;
        }
        if (/\d/.test(ch)) {
            stream.eatWhile(/[\w\.]/);
            return "number";
        }
        if (ch == "/") {
            if (stream.eat("*")) {
                state.tokenize = tokenComment;
                return tokenComment(stream, state);
            }
            if (stream.eat("/")) {
                stream.skipToEnd();
                return "comment";
            }
        }
        if (isOperatorChar.test(ch)) {
            stream.eatWhile(isOperatorChar);
            return "operator";
        }
        stream.eatWhile(/[\w\$_]/);
        var cur = stream.current();
        if (keywords.propertyIsEnumerable(cur)) {
            if (blockKeywords.propertyIsEnumerable(cur)) curPunc = "newstatement";
            return "keyword";
        }
        if (atoms.propertyIsEnumerable(cur)) return "atom";
        return "word";
    }

    function tokenString(quote) {
        return function (stream, state) {
            var escaped = false, next, end = false;
            while ((next = stream.next()) != null) {
                if (next == quote && !escaped) {
                    end = true;
                    break;
                }
                escaped = !escaped && next == "\\";
            }
            if (end || !(escaped || multiLineStrings))
                state.tokenize = null;
            return "string";
        };
    }

    function tokenComment(stream, state) {
        var maybeEnd = false, ch;
        while (ch = stream.next()) {
            if (ch == "/" && maybeEnd) {
                state.tokenize = null;
                break;
            }
            maybeEnd = (ch == "*");
        }
        return "comment";
    }

    function Context(indented, column, type, align, prev) {
        this.indented = indented;
        this.column = column;
        this.type = type;
        this.align = align;
        this.prev = prev;
    }

    function pushContext(state, col, type) {
        return state.context = new Context(state.indented, col, type, null, state.context);
    }

    function popContext(state) {
        var t = state.context.type;
        if (t == ")" || t == "]" || t == "}")
            state.indented = state.context.indented;
        return state.context = state.context.prev;
    }

    // Interface

    return {
        startState: function (basecolumn) {
            return {
                tokenize: null,
                context: new Context((basecolumn || 0) - indentUnit, 0, "top", false),
                indented: 0,
                startOfLine: true
            };
        },

        token: function (stream, state) {
            var ctx = state.context;
            if (stream.sol()) {
                if (ctx.align == null) ctx.align = false;
                state.indented = stream.indentation();
                state.startOfLine = true;
            }
            if (stream.eatSpace()) return null;
            curPunc = null;
            var style = (state.tokenize || tokenBase)(stream, state);
            if (style == "comment" || style == "meta") return style;
            if (ctx.align == null) ctx.align = true;

            if ((curPunc == ";" || curPunc == ":") && ctx.type == "statement") popContext(state);
            else if (curPunc == "{") pushContext(state, stream.column(), "}");
            else if (curPunc == "[") pushContext(state, stream.column(), "]");
            else if (curPunc == "(") pushContext(state, stream.column(), ")");
            else if (curPunc == "}") {
                while (ctx.type == "statement") ctx = popContext(state);
                if (ctx.type == "}") ctx = popContext(state);
                while (ctx.type == "statement") ctx = popContext(state);
            }
            else if (curPunc == ctx.type) popContext(state);
            else if (ctx.type == "}" || ctx.type == "top" || (ctx.type == "statement" && curPunc == "newstatement"))
                pushContext(state, stream.column(), "statement");
            state.startOfLine = false;
            return style;
        },

        indent: function (state, textAfter) {
            if (state.tokenize != tokenBase && state.tokenize != null) return 0;
            var ctx = state.context, firstChar = textAfter && textAfter.charAt(0);
            if (ctx.type == "statement" && firstChar == "}") ctx = ctx.prev;
            var closing = firstChar == ctx.type;
            if (ctx.type == "statement") return ctx.indented + (firstChar == "{" ? 0 : indentUnit);
            else if (ctx.align) return ctx.column + (closing ? 0 : 1);
            else return ctx.indented + (closing ? 0 : indentUnit);
        },

        electricChars: "{}"
    };
});

(function () {
    function words(str) {
        var obj = {}, words = str.split(" ");
        for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
        return obj;
    }

    var cKeywords = "auto if break int case long char register continue return default short do sizeof " +
        "double static else struct entry switch extern typedef float union for unsigned " +
        "goto while enum void const signed volatile";

    function cppHook(stream, state) {
        if (!state.startOfLine) return false;
        stream.skipToEnd();
        return "meta";
    }

    // C#-style strings where "" escapes a quote.
    function tokenAtString(stream, state) {
        var next;
        while ((next = stream.next()) != null) {
            if (next == '"' && !stream.eat('"')) {
                state.tokenize = null;
                break;
            }
        }
        return "string";
    }

    CodeMirror.defineMIME("text/x-csrc", {
        name: "clike",
        keywords: words(cKeywords),
        blockKeywords: words("case do else for if switch while struct"),
        atoms: words("null"),
        hooks: {"#": cppHook}
    });
    CodeMirror.defineMIME("text/x-c++src", {
        name: "clike",
        keywords: words(cKeywords + " asm dynamic_cast namespace reinterpret_cast try bool explicit new " +
            "static_cast typeid catch operator template typename class friend private " +
            "this using const_cast inline public throw virtual delete mutable protected " +
            "wchar_t"),
        blockKeywords: words("catch class do else finally for if struct switch try while"),
        atoms: words("true false null"),
        hooks: {"#": cppHook}
    });
    CodeMirror.defineMIME("text/x-java", {
        name: "clike",
        keywords: words("abstract assert boolean break byte case catch char class const continue default " +
            "do double else enum extends final finally float for goto if implements import " +
            "instanceof int interface long native new package private protected public " +
            "return short static strictfp super switch synchronized this throw throws transient " +
            "try void volatile while"),
        blockKeywords: words("catch class do else finally for if switch try while"),
        atoms: words("true false null"),
        hooks: {
            "@": function (stream, state) {
                stream.eatWhile(/[\w\$_]/);
                return "meta";
            }
        }
    });
    CodeMirror.defineMIME("text/x-csharp", {
        name: "clike",
        keywords: words("abstract as base bool break byte case catch char checked class const continue decimal" +
            " default delegate do double else enum event explicit extern finally fixed float for" +
            " foreach goto if implicit in int interface internal is lock long namespace new object" +
            " operator out override params private protected public readonly ref return sbyte sealed short" +
            " sizeof stackalloc static string struct switch this throw try typeof uint ulong unchecked" +
            " unsafe ushort using virtual void volatile while add alias ascending descending dynamic from get" +
            " global group into join let orderby partial remove select set value var yield"),
        blockKeywords: words("catch class do else finally for foreach if struct switch try while"),
        atoms: words("true false null"),
        hooks: {
            "@": function (stream, state) {
                if (stream.eat('"')) {
                    state.tokenize = tokenAtString;
                    return tokenAtString(stream, state);
                }
                stream.eatWhile(/[\w\$_]/);
                return "meta";
            }
        }
    });
}());
